CD74AC74

ACTIVE

Dual positive-edge-triggered D-type flip-flops with clear and preset

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Product details

Parameters

Channels (#) 2 Technology Family AC VCC (Min) (V) 4.5 VCC (Max) (V) 5.5 Input type Standard CMOS Output type Push-Pull Clock Frequency (Max) (MHz) 125 IOL (Max) (mA) 24 IOH (Max) (mA) -24 ICC (Max) (uA) 80 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode open-in-new Find other D-type flip-flop

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 open-in-new Find other D-type flip-flop

Features

  • AC Types Feature 1.5-V to 5.5-V Operation and Balanced Noise Immunity at 30% of the Supply
  • Speed of Bipolar F, AS, and S, With Significantly Reduced Power Consumption
  • Balanced Propagation Delays
  • ±24-mA Output Drive Current
    • Fanout to 15 F Devices
  • SCR-Latchup-Resistant CMOS Process and Circuit Design
  • Exceeds 2-kV ESD Protection Per MIL-STD-883, Method 3015

open-in-new Find other D-type flip-flop

Description

The ’AC74 dual positive-edge-triggered devices are D-type flip-flops.

A low level at the preset (PRE)\ or clear (CLR)\ inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not related directly to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.

open-in-new Find other D-type flip-flop
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet CD54AC74, CD74AC74 datasheet (Rev. D) Dec. 05, 2002
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Application notes Implications of Slow or Floating CMOS Inputs (Rev. D) Jun. 23, 2016
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
Application notes Power-Up Behavior of Clocked Devices (Rev. A) Feb. 06, 2015
More literature HiRel Unitrode Power Management Brochure Jul. 07, 2009
User guides LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
Application notes TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
Application notes CMOS Power Consumption and CPD Calculation (Rev. B) Jun. 01, 1997
Application notes Designing With Logic (Rev. C) Jun. 01, 1997
Application notes Input and Output Characteristics of Digital Integrated Circuits Oct. 01, 1996
Application notes Live Insertion Oct. 01, 1996
Application notes Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc Apr. 01, 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
10
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices

CAD/CAE symbols

Package Pins Download
PDIP (N) 14 View options
SOIC (D) 14 View options

Ordering & quality

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